There is increasing interest in the application of serious games for learning. Growth in the take-up of digital devices, e.g. smartphones and tablets, and their use for gaming provides new opportunities for mobile learning (m-learning). A serious game m-learning app for improving adult learners' apostrophe usage, called Apostrophe Power, has been developed. The research team, which consisted of software engineers and educationalists, encountered a number of discipline spanning issues while designing and developing this m-learning app. This paper overviews the issues encountered, the recommendations from recent literature and how the issues were ultimately addressed, exemplified in a case study. These lessons learnt offer insight for serious game development and highlight practical solutions for m-learning apps involving interdisciplinary teams.